Roller cotton-gin



P. H. CHASE. I OLLER GOTT l Patented Sept. 23, 1890 No. 437,172. I 17 mz iifl WITNESSES. 62%.WW 2%- 71m iy ziw UNITED STATES PATENT OFFICE.

FRANK H. CHASE, OF HAVEBHILL, MASSACHUSETTS, ASSIGNOR, BY DIRECT ANDMESNE ASSIGNMENTS, TO THE CHASE COTTON GIN COMPANY, OF

NEW HAMPSHIRE.

ROLLER COTTON-GIN.

SPECIFICATION forming part of Letters Patent No. 437,172, datedSeptember 23, 1890.

Application filed April 26, 1890. Serial No. 349,654. (No model.)

To all whom it may concern.-

Be it known that I, FRANK H. CHASE, of Haverhill, in the county of Essexand State of Massachusetts, have invented a new and useful Improvementin Roller Cotton-Gins, of

which the following is a specification.

My invention relates to that class of cottongins known as roller-gins,in which a revolving beater, sometimes called a clearer [O or stripper,is used; and it consists in the combination, with the other essentialparts of the gin, of the beater constructed as below described, andillustrated in the accompanying drawings, in which- Figure 1 is aview inperspective of my improved beater. Fig. 2 is a cross-section of thesame. Fig. 3 is a longitudinal section of one end of the same. Fig. 4 isa central vertical section of a portion of a cotton-gin with my heaterin position.

Similar letters of reference indicate like parts.

A represents the frame; B, the table; C, the drawing-roller; D, theupper doiter; E, the

2 5 lower dofter, and I the pressure-bar, all constructed substantiallyas usual.

J J are respectively fingers and a fingerbar constructed as described inLetters Patent numbered 418,908, dated January 7, 1890.

K is the roll constituting the body of the beater, provided at itsopposite ends with the integral shafts K, by means of which it isrotated.

L L are four (more or less) parallel straight radial wings, made,preferably, of hardened steel, of substantially the dovetailed shape.

shown, secured in the body of the beater by being slid intocorresponding longitudinal dovetailed grooves. The wings are preventedfrom longitudinal movement by the collars P, which are pinned to theshaft of the beater, as shown, next the opposite ends of said wings. Aswill readily be seen, these wings are removable and interchangeable, sothat when one wears out or breaks it can be quickly replaced by another.It has also the advantage over a spiral or corrugated beater, in thatthe feed is uniform for the length of the roller, while a spiral beaterhas a tendency to convey the seed-cotton to one end of the roller.Moreover, the direct motion had by the straight beater-wings tends toprevent kinking, curling, or twisting of the fiber.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is

In a roller cotton-gin, the combination, with the drawing-roller, of thewinged beater or stripper described, consisting, essentially, of themain portion or roll K and the straight longitudinal wings L, heldremovably in longitudinal grooves in the roll and prevented fromlongitudinal movement by the collars P, substantially as described.

FRANK H. CHASE.

Witnesses:

HENRY W. WILLIAMS, 7 J. M. HARTNETT.

